Either didn't have the proper drivers or didn't reselect the correct port.
But what good is asking for help when you've already sent it back when it was user error. What good is it asking for opinions when you've got your own conclusions that first have to be proven erroneous to your satisfaction which wastes everyone's time.
You have not described your problem adequately. The offense you've taken to having that pointed out indicates you're a difficult individual to prove otherwise to. You should have described your IDE settings, which board was chosen, which port was chosen, what your PC response was to having it plugged in, which board you have (real or clone), which USB chip it is using, etc. There is plenty of information you could have given in your first post that would've gotten you a complete answer by a first response.
All you've really posted, which you deemed adequate, was, "it dun work and i reckon it's cause it looks diffurnt".